diff --git a/src/Microsoft.OpenApi.Readers/ParseNodes/ListNode.cs b/src/Microsoft.OpenApi.Readers/ParseNodes/ListNode.cs
index bfb9a554f..dfc728c9b 100644
--- a/src/Microsoft.OpenApi.Readers/ParseNodes/ListNode.cs
+++ b/src/Microsoft.OpenApi.Readers/ParseNodes/ListNode.cs
@@ -36,7 +36,7 @@ public override List<T> CreateList<T>(Func<MapNode, T> map)
 
         public override List<IOpenApiAny> CreateListOfAny()
         {
-            return _nodeList.Select(n => ParseNode.Create(Context, n).CreateAny())
+            return _nodeList.Select(n => Create(Context, n).CreateAny())
                 .Where(i => i != null)
                 .ToList();
         }
diff --git a/src/Microsoft.OpenApi/Expressions/CompositeExpression.cs b/src/Microsoft.OpenApi/Expressions/CompositeExpression.cs
index bbe0d3076..f6807de96 100644
--- a/src/Microsoft.OpenApi/Expressions/CompositeExpression.cs
+++ b/src/Microsoft.OpenApi/Expressions/CompositeExpression.cs
@@ -34,7 +34,7 @@ public CompositeExpression(string expression)
             foreach (var item in matches.Cast<Match>())
             {
                 var value = item.Groups["exp"].Captures.Cast<Capture>().First().Value;
-                ContainedExpressions.Add(RuntimeExpression.Build(value));
+                ContainedExpressions.Add(Build(value));
             }
         }
 
diff --git a/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiOperationTests.cs b/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiOperationTests.cs
index ced80c348..665605e8d 100644
--- a/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiOperationTests.cs
+++ b/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiOperationTests.cs
@@ -21,7 +21,7 @@ public void OperationWithSecurityRequirementShouldReferenceSecurityScheme()
             using var stream = Resources.GetStream(Path.Combine(SampleFolderPath, "securedOperation.yaml"));
             var openApiDoc = new OpenApiStreamReader().Read(stream, out var diagnostic);
 
-            var securityRequirement = openApiDoc.Paths["/"].Operations[Models.OperationType.Get].Security.First();
+            var securityRequirement = openApiDoc.Paths["/"].Operations[OperationType.Get].Security.First();
 
             Assert.Same(securityRequirement.Keys.First(), openApiDoc.Components.SecuritySchemes.First().Value);
         }
diff --git a/test/Microsoft.OpenApi.SmokeTests/ApiGurus.cs b/test/Microsoft.OpenApi.SmokeTests/ApiGurus.cs
index efc79b133..b2cd1143b 100644
--- a/test/Microsoft.OpenApi.SmokeTests/ApiGurus.cs
+++ b/test/Microsoft.OpenApi.SmokeTests/ApiGurus.cs
@@ -27,7 +27,7 @@ public ApisGuruTests(ITestOutputHelper output)
 
         static ApisGuruTests()
         {
-            System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
+            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
             _httpClient = new(new HttpClientHandler
             {
                 AutomaticDecompression = DecompressionMethods.GZip
diff --git a/test/Microsoft.OpenApi.SmokeTests/GraphTests.cs b/test/Microsoft.OpenApi.SmokeTests/GraphTests.cs
index 77b4d2525..9bd1069a2 100644
--- a/test/Microsoft.OpenApi.SmokeTests/GraphTests.cs
+++ b/test/Microsoft.OpenApi.SmokeTests/GraphTests.cs
@@ -19,7 +19,7 @@ public class GraphTests
         public GraphTests(ITestOutputHelper output)
         {
             _output = output;
-            System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
+            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
             _httpClient = new(new HttpClientHandler
             {                AutomaticDecompression = DecompressionMethods.GZip
             });
diff --git a/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiPrimaryErrorMessageExtensionTests.cs b/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiPrimaryErrorMessageExtensionTests.cs
index b78ed1793..5ef75d8a9 100644
--- a/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiPrimaryErrorMessageExtensionTests.cs
+++ b/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiPrimaryErrorMessageExtensionTests.cs
@@ -16,7 +16,7 @@ public class OpenApiPrimaryErrorMessageExtensionTests
     public void ExtensionNameMatchesExpected()
     {
         // Act
-        string name = Microsoft.OpenApi.MicrosoftExtensions.OpenApiPrimaryErrorMessageExtension.Name;
+        string name = MicrosoftExtensions.OpenApiPrimaryErrorMessageExtension.Name;
         string expectedName = "x-ms-primary-error-message";
 
         // Assert
@@ -50,7 +50,7 @@ public void ParsesValue()
         var value = new OpenApiBoolean(true);
 
         // Act
-        var extension = Microsoft.OpenApi.MicrosoftExtensions.OpenApiPrimaryErrorMessageExtension.Parse(value);
+        var extension = MicrosoftExtensions.OpenApiPrimaryErrorMessageExtension.Parse(value);
 
         // Assert
         Assert.True(extension.IsPrimaryErrorMessage);